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xilinx_spips: Make dma transactions as per dma_burst_size

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Qspi dma has a burst length of 64 bytes, So limit the transactions w.r.t
dma-burst-size property.

Signed-off-by: Sai Pavan Boddu <saipava@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1529660880-30376-1-git-send-email-sai.pavan.boddu@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Sai Pavan Boddu 2018-06-26 17:50:39 +01:00 • committed by Peter Maydell
parent 1f7161d2c8
commit 21d887cde9
2 changed files with 24 additions and 4 deletions
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5
include/hw/ssi/xilinx_spips.h
View file

@ -37,6 +37,8 @@ typedef struct XilinxSPIPS XilinxSPIPS;
/* Bite off 4k chunks at a time */
#define LQSPI_CACHE_SIZE 1024
#define QSPI_DMA_MAX_BURST_SIZE 2048
typedef enum {
READ = 0x3, READ_4 = 0x13,
FAST_READ = 0xb, FAST_READ_4 = 0x0c,
@ -95,7 +97,6 @@ typedef struct {
XilinxQSPIPS parent_obj;
StreamSlave *dma;
uint8_t dma_buf[4];
int gqspi_irqline;
uint32_t regs[XLNX_ZYNQMP_SPIPS_R_MAX];
@ -113,6 +114,8 @@ typedef struct {
uint8_t rx_fifo_g_align;
uint8_t tx_fifo_g_align;
bool man_start_com_g;
uint32_t dma_burst_size;
uint8_t dma_buf[QSPI_DMA_MAX_BURST_SIZE];
} XlnxZynqMPQSPIPS;
typedef struct XilinxSPIPSClass {